56 lines
2 KiB
C++
56 lines
2 KiB
C++
#ifndef SAMPLERING_H
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#define SAMPLERING_H
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#include <stdint.h>
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#include "structures.h"
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#include "baselayer.h"
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#include "spisim.h"
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static constexpr unsigned RING_BIT = 10;
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static constexpr unsigned RING_LEN = 1u << RING_BIT;
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static constexpr unsigned RING_MSK = RING_LEN - 1u;
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static constexpr unsigned DATA_HALF_LEN = 1024u;
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static constexpr unsigned DATA_FULL_LEN = DATA_HALF_LEN * 2u;
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static constexpr unsigned RCVD_BUFLEN = 16;
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enum RCVD_STATUS {
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RCVD_IDLE = 0,
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RCVD_DATA,
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};
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class SampleRing : public BaseLayer {
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SpiSim spi;
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ChannelVoltage voltage;
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[[gnu::aligned(4)]]DATA_BLOCK ring_buffer [RING_LEN];
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TrigerSettings m_settings;
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volatile unsigned m_head, m_tail;
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volatile unsigned m_lenght;
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bool m_old_triger;
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bool m_trigered;
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volatile bool m_finished;
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TIME_BASE_MODE m_mode, o_mode;
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unsigned m_time_base_order;
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[[gnu::aligned(4)]]char rcvd_buffer [RCVD_BUFLEN];
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unsigned rcvd_counter;
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RCVD_STATUS rcvd_status;
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public:
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explicit SampleRing () noexcept : BaseLayer(), spi(), voltage(), m_settings(), m_head(0), m_tail(0), m_lenght(0),
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m_old_triger(false), m_trigered(false), m_finished(false),
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m_mode (TIME_BASE_TRIGERED), o_mode (TIME_BASE_TRIGERED), m_time_base_order(6u),
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rcvd_counter(0u), rcvd_status (RCVD_IDLE) { };
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uint32_t Up (const char * data, const uint32_t len) override;
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void write (DATA_BLOCK const * data);
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void pass ();
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protected:
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uint32_t BlockSend (const char * buf, const uint32_t len);
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uint32_t SendPrefix ();
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uint32_t SendData (const DATA_BLOCK & data);
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bool read (DATA_BLOCK & sample);
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void CmdReceived ();
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void CommandPass (const unsigned cmd);
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void ReloadTimer (const unsigned n);
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void SendSettings();
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};
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#endif // SAMPLERING_H
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